Size: California King  • Comfort level: Firm Construction: All-foam mattress without innerspring coils Comfort layer: 1" body-contouring memory foam Support core: 7" firm support foam Cover: Stretch knit fabric Compatibility: Adjustable-base compatible Foundation/box spring: Sold separately Setup: Ships compressed in a box; allow up to 48 hours for expansion Warranty: 10-year non-prorated manufacturer warranty Available sizes: Twin, Full and California King
Why choose the Ashley Sleep 8-Inch Memory Foam California King Mattress M59151? The Ashley M59151 combines a firm sleeping surface with a slim 8-inch profile and the extra length of a California King mattress. Its 1-inch memory foam layer provides contouring cushioning, while 7 inches of firm support foam form the underlying core without springs. Measuring 83.5 inches long and 72 inches wide, it offers more legroom than a standard King but slightly less width, making the choice particularly relevant for taller sleepers. The lower mattress profile also helps manage finished bed height when using a taller foundation, while adjustable-base compatibility provides another setup option. Twin and Full sizes are available with separate SKUs for smaller bedrooms.
Specificationsâ–¶
Specifications Details
Dimensions
83.5''W x 72''D x 8''H
Weight
57.0 lbs
Color
White
UPC
024052813555
Brand Name
Sierra Sleep® by Ashley
Material
Fabric
Lifestyle
Traditional
Bed Size
California King
Pattern
Textured
Mattress Feature
Memory Foam
Assembly
Assembly Not Required
Product Detailsâ–¶
Comfort level: firm
8" profile height
1" memory foam
7" firm support foam
Stretch knit cover
Adjustable base compatible
10-year non-prorated warranty
Note: Purchasing mattress and foundation from two different brands may void warranty; see warranty for details
Foundation/box spring sold separately
State recycling fee may apply
Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
Is the Ashley 8-Inch Memory Foam M59151 California King better for taller sleepers than a standard King?
The Ashley M59151 measures 83.5 inches long and 72 inches wide, approximately 4 inches longer and 4 inches narrower than a standard King mattress. The extra length provides more legroom for taller sleepers, while couples receive about 36 inches of sleeping width per person. When comparing larger bed sizes for sleeping space and bedroom layout, account for the outer bed-frame dimensions and surrounding walkways. M59151 requires California King bedding and a matching frame rather than standard King accessories.
How firm is the Ashley M59151, and what does its 1-inch memory foam layer provide?
Ashley rates the M59151 as firm, with 1 inch of memory foam over 7 inches of firm support foam. The upper layer contours to the body, while the thicker core resists deeper compression and supplies underlying support. This construction differs from softer, thicker memory foam mattresses that devote more height to cushioning. Understanding how comfort-layer thickness and underlying firmness affect mattress feel helps shoppers evaluate the design without assuming that a thin profile means inadequate support. Comfort preferences vary by sleeper, and the all-foam construction does not provide traditional spring bounce.
How does the 8-inch Ashley California King M59151 affect finished bed height and adjustable-base setup?
The Ashley M59151 is 8 inches thick and adjustable-base compatible. On a support surface 12 inches above the floor, the mattress top would sit approximately 20 inches high before compression—4 inches lower than a 12-inch mattress on the same base. The relationship between mattress thickness, foundation height and everyday bed access is particularly relevant when choosing a lower-profile mattress for an existing bed. Confirm California King frame dimensions and manufacturer support requirements. The foundation is sold separately, and the 62-pound mattress ships compressed in a box; allow up to 48 hours for expansion after opening.
Shopping for the Ashley 8-Inch Memory Foam California King Mattress M59151 in Chicago or Illinois? VBU Furniture offers Chicagoland pickup, delivery throughout Chicago and Illinois, and shipping across the contiguous 48 states.
New Product - Professional Photography Coming Soon
Looking to make a subtly striking statement in your bedroom? We've got you covered. This nightstand’s sophisticated two-tone treatment marries a w...
Looking cool and contemporary is great. But when it comes down to it, you’re all about low-maintenance lounging. With the performance fabric on th...
This darling pouf is queen of the blue jeans. Woven from strips of denim, the square shape will be a favorite go-to seat or ottoman. It’s also stu...
Isn’t it time to discover a whole new level of relaxation? This power reclining sectional is a divine merger of fabulous function and sleek transi...
Isn’t it time to discover a whole new level of relaxation? This power reclining sectional loveseat with console is a divine merger of fabulous fun...
Isn’t it time to discover a whole new level of relaxation? This power reclining sectional sofa is a divine merger of fabulous function and sleek t...
Eye-catching natural beauty. This accent mirror brings movement and depth to your decor with the frame’s undulating wave design. A classic brown f...
Bring the whole look together. We’ve hand-picked complementary Ashley Furniture pieces that pair
beautifully with your mattress — everything you need to finish the space, all
in one place.
